Home / 428,614.40-591,501.92-237,645.60

Finding the Fourth Proportional to 428,614.40, 591,501.92 and 237,645.60

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Solution

The fourth proportional to 428,614.40, 591,501.92 and 237,645.60 is: 327,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,614.40 : 591,501.92 = 237,645.60 : x
  2. Step 2: Convert to fraction form
    428,614.40/591,501.92 = 237,645.60/x
  3. Step 3: Cross multiply
    428,614.40x = 591,501.92 × 237,645.60
  4. Step 4: Simplify right side
    428,614.40x = 140,567,828,679.55
  5. Step 5: Solve for x
    x = 140,567,828,679.55/428,614.40
  6. Step 6: Final answer
    x = 327,958.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.